What is hydroxyproline doing in collagen? Unpacking the molecule's role
                                
                                
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                                    4 min read                                
                            
                                Collagen, the most abundant protein in the body, owes its remarkable tensile strength and unique structure to a special modification: the addition of hydroxyproline. This process, which occurs after initial synthesis, is fundamentally important for producing stable collagen fibers that form the structural framework of skin, bones, and cartilage.